Ответ:
R1=10 R2=15 или R1=15 R2=10
Объяснени:
U=100
I1=20
I2=4
R1,R2?
(1)
U*(R1+R2)/R1*R2=I1
(2)
U/(R1+R2)=I2
R1+R2=U/I2
U^2/I2*R1*R2=I1
R1*R2=U^2/I1*I2
R1=(U/I2)-R2
((U/I2)-R2)*R2=U^2/(I1*I2)
25R2-R2^2=125
R2=(25+√(625-600))/2=15
R2=(25-√(625-600))/2=10
R1=25-15=10
R1=25-10=15
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Ответ:
R1=10 R2=15 или R1=15 R2=10
Объяснени:
U=100
I1=20
I2=4
R1,R2?
(1)
U*(R1+R2)/R1*R2=I1
(2)
U/(R1+R2)=I2
R1+R2=U/I2
(1)
U^2/I2*R1*R2=I1
R1*R2=U^2/I1*I2
R1=(U/I2)-R2
((U/I2)-R2)*R2=U^2/(I1*I2)
25R2-R2^2=125
R2=(25+√(625-600))/2=15
R2=(25-√(625-600))/2=10
R1=25-15=10
R1=25-10=15